US 10,308,822 B2 · Thermosetting coating composition

Abstract

An object to be solved by the present invention is to discover a thermosetting coating composition ensuring an excellent finished appearance without a decrease in corrosion resistance, and to provide a coated article with such excellent coating performances. The present invention provides a thermosetting coating composition, comprising a modified epoxy resin (A) resulting from a reaction of an epoxy resin (a1) with a modifier (a2), and optionally with an amine compound (a4); and a blocked polyisocyanate compound (B), the modified epoxy resin (A) comprising, at least in a part of the terminals thereof, a specific organic group, and having a number average molecular weight of 800 to 80,000.

Claims8

Dependent claims

A thermosetting coating composition, comprising a modified epoxy resin (A) resulting from a reaction of an epoxy resin (a1) with a modifier (a2), and optionally with an amine compound (a4);

and a blocked polyisocyanate compound (B), the modified epoxy resin (A) comprising, at least in a part of the terminals thereof, an organic group represented by Formula (1) or Formula (2) below, and having a number average molecular weight of 800 to 80,000,
wherein R1 and R2 each represent hydrogen, C1-12 alkyl, or C1-13 alkyloxymethyl;
and R3 represents hydrogen or methyl,
wherein R4 and R5 each represent hydrogen, C1-12 alkyl, or C1-13 alkyloxymethyl;
R6 represents hydrogen or methyl;
and R7, R8, R9 and R10 each represent hydrogen or C1-12 alkyl.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/527,437Filed 19 Nov 2015

Priority

JP 2014-23491719 Nov 2014

Published

US 2018/0327613 A115 Nov 2018

Granted

4 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification22 codes

C09D 5/4465
With polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds: polyurethanes
C08G 18/0814
Containing cationic or cationogenic groups: containing ammonium groups or groups forming them
C08G 18/2835
Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds: having less than 5 ether groups
C08G 18/6407
Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63: reaction products of epoxy resins with at least equivalent amounts of…

Thermosetting coating composition

Life of this patent

Thermosetting coating composition

Life of this patent

Abstract

Claims8